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10385285 = 513715161
BaseRepresentation
bin100111100111…
…011110000101
3201112121221012
4213213132011
510124312120
61010332005
7154162541
oct47473605
921477835
1010385285
115953689
12358a005
1321c8051
141544a21
15da21c5
hex9e7785

10385285 has 8 divisors (see below), whose sum is σ = 12554136. Its totient is φ = 8247040.

The previous prime is 10385281. The next prime is 10385293. The reversal of 10385285 is 58258301.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1522756 + 8862529 = 1234^2 + 2977^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10385285 - 22 = 10385281 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10385281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6896 + ... + 8265.

It is an arithmetic number, because the mean of its divisors is an integer number (1569267).

Almost surely, 210385285 is an apocalyptic number.

It is an amenable number.

10385285 is a deficient number, since it is larger than the sum of its proper divisors (2168851).

10385285 is a wasteful number, since it uses less digits than its factorization.

10385285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15303.

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 10385285 is about 3222.6208278356. The cubic root of 10385285 is about 218.1755802878.

The spelling of 10385285 in words is "ten million, three hundred eighty-five thousand, two hundred eighty-five".

Divisors: 1 5 137 685 15161 75805 2077057 10385285